<template>
  <div class="breadcrumbBox">
    <!--<b class="logoText">Hello</b>-->
    <el-breadcrumb class="app-breadcrumb" separator-class="el-icon-arrow-right">
      <transition-group name="breadcrumb">
        <el-breadcrumb-item v-for="(item,index) in levelList" :key="item.path"><span v-if="item.redirect==='noredirect'||index==levelList.length-1" class="no-redirect">{{ item.meta.title }}</span>
          <a v-else @click.prevent="handleLink(item)">{{ item.meta.title }}</a>
        </el-breadcrumb-item>
      </transition-group>
    </el-breadcrumb>
    <a @click="$router.go(-1)"><span class="right return">返回 ></span></a>
  </div>
</template>

<script>
import pathToRegexp from 'path-to-regexp';

export default {
  data() {
    return {
      // levelList: null
    };
  },
  computed: {
    levelList() {
      return this.$store.getters.breadCrumb;
    }
  },
  watch: {
    $route() {
      this.getBreadcrumb();
    }
  },
  created() {
    this.getBreadcrumb();
  },
  methods: {
    getBreadcrumb() {
      const _this = this;
      let matched = this.$route.matched.filter(item => item.name);

      // const first = matched[0];
      // if (first && first.name.trim().toLocaleLowerCase() !== 'Dashboard'.toLocaleLowerCase()) {
      //   matched = [{ path: '/main', meta: { title: '首页' }}].concat(matched);
      // }

      let levelList = matched.filter(item => item.meta && item.meta.title && item.meta.breadcrumb !== false);
      _this.$store.dispatch('set_breadCrumb_list', levelList);
    },
    pathCompile(path) {
      // To solve this problem https://github.com/PanJiaChen/vue-element-admin/issues/561
      const { params } = this.$route;
      var toPath = pathToRegexp.compile(path);
      return toPath(params);
    },
    handleLink(item) {
      const { redirect, path } = item;
      if (redirect) {
        this.$router.push(redirect);
        return;
      }
      // this.$router.push(this.pathCompile(path));
      this.$router.push({path: path});
    }
  }
};
</script>

<style rel="stylesheet/scss" lang="scss" scoped>
  /*.logoText{*/
    /*display: inline-block;*/
    /*height: 50px;*/
    /*position: relative;*/
    /*bottom: 20px;*/
    /*color:red;*/
    /*font-size: 18px;*/
    /*margin-left: 8px;*/
  /*}*/
  .app-breadcrumb.el-breadcrumb {
    display: inline-block;
    font-size: 14px;
    /*line-height: 50px;*/
    line-height: 37px;
    margin-left: 8px;
    .no-redirect {
      color: #97a8be;
      cursor: text;
    }
  }
  .breadcrumbBox{
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
</style>
